David:
David Brownell wrote:
I know there have been discussions about standardizing GPIOs before,
but nothing quite "took". One of the more recent ones was
http://marc.theaimsgroup.com/?l=linux-kernel&m=110873454720555&w=2
Below, find what I think is a useful proposal, trivially implementable on
many ARMs (at91, omap, pxa, ep93xx, ixp2000, pnx4008, davinci, more) as well
as the new AVR32.
Compared to the proposal above, key differences include:
Excellent proposal, I think it should be implemented as-is. I don't
care that this proposal only works for "real" GPIOs, and doesn't provide
for a userspace API.
At its worst, this proposal offers an intermediate step towards a
framework that can do both synchronous/real and asynchronous GPIO
control. At its best, provides a starting point for that framework AND
a much-needed unification in an API that could really use cleaning up
TODAY. No downside, in my opinion.
b.g.
--
Bill Gatliff
[email protected]
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